Drop guide



April 10, 1928.

W. M. KELLY DROP GUIDE Filed April l5, 1927 31a/vanto@ 33M, @i 0%@ yn @www Patented Apr. 1o, 192s. Y

I ,aeesei y t .UNITED ST-MES w` f WILLIAM II. KELLayoF WESTFIEILD, unwinnsay. e c

f'DRor GUIDE; v

applicati@ aiaApiiiis, 1927.` serial Np. istria.'V

This invention'relates to drop guidesV for cylinder printing presses, and more particularly'to a'drop guide adapted'for use With such presses having'an automaticsheet feeding mechanism, inV Which'th'e feedingv mechamsm vmay be removed to permit hand feeding. o

It isan object of t-he present invention to provide a 'drop guide which Will'cooperate with an automatic vsheet feedingmechanism 4in a cylinder printing press, and which may Y be alsor readily adapted for hand f'feeding',

when the automaticV sheet'V feeding mechanism `is removed., ,i Y A further object of the invention: is to `provide a drop guide, which maybe adjusted to Van operative positionfor hand feedingjand 'whichfmay be readily removed toits inoper- 4to manufacture, speedy vand convenient in operation, and also quite simple in construction. 'I

Other objects and features ofnovelty Will i be, apparent as the description proceeds when taken in connection with j the accompanying fdrawings'which form a part of this specification, in' Which i Figure l is a longitudinal, `vertical section of the tOru. y. l

. Figure 2 is atop plan view of the structure shovvnV in Figl; and

Adrop guide according to this inven- Figure 3 is an elevation lofthe front plate i of the front stop. A

, "Automatic cylinderjprinting presses have;

,x been heretofore provided WithQa-utomatic" sheetfeeding mechanism, togethervwith front s tops to cooperate'therevvith effecting an accurate front registerfof the vsheet to presentv it'to`1the cylinder grippers which carry'the -paper Vduring the ini-pressionv stroke, and present 'it tothe delivery. mechanismk Whenk this 'proper to Vpermit hand feeding. However,vr `When-this is done, the guide structure, such 'i sheetVV feeding mechanism .is replaced 'in opative position when an automatic sheet' feed- L grippers.

-ofa smaller stem 2Qw'hich is ada-ptedftobe jopera'ted by the knurled head 21 rigid therestroke is cc'mapleted.V4 Suchpresses have been Vprovided With automatic sheet-'feeding mechanism Which may be removed'from the press as'forlexample'the slowdown 1inger,. ofthe vautomatic sheet feeding mechanismv vis also removed, so that accurate register by Ihand feeding is vquite diiiicult. It is yan important feature of the present,inventiompthereform to provide a Vdrop guide suitable forih'andV feeding, and Which-may lbereafdily adjusted for. automatic'fee ding,"vvhen the automatic erative position 'Withrespectto lthe press.v

" Front stops normally comprise albody member mounted Ona rock shaft', anda projecting stem.VV At thefend [ofthe stem :is a

sheet st op part, which varies inform. The l7.0

`sheet is advanced aga-inst ,thestoppart and is "positioned Vto 'be take-Irl by the cylinder grippers. Thenthe shaft is rocked, which 'raises the sheet stop Jpart out ofthe Way of the sheet, so thatitmay be taken'byy the Referring ymore particularly to the drawings, a front lstopaccording toi' the present invention comprises an elongatedjbody 10 "having a. cylindricalbore 11 anda.' laterally iextendingbossr 12,'Which is also centrally bored'as at 13 togreceivea rock vshaft oftheV printing machine. YThe body lOalso 'com- "prises afvertical'boss 14 vvhichisbored and.` y

tapped to' receive the clamp scretvl.; `The 85'# boss :12 Vis splitjradially and transverse to theboss lll'and 'the clampscrew l16 extends v through the two portionsof the/ boss 14E, whereby-` the front' stop maybe clamped'to the rock shaft previously mentioned# The bore 11 is adapted toV receive a stem 17,jwhi`ch is the main stemofthe'front stop.

lThis stein is internallyV bored as at" 18'and i tapped as-'at 19to receive the threaded end I With. l VThus by manually )operating the'.v

Vclamp screw 23 which bears on the stem 2() and clamps the stem 17 vbetween the stem Y 20 and the bore 11. i

To retain the front stop always in a ver- `ticalpositionlgthe stem `17 is slotted longii tudinallyfat' its upper'sideas at 24and-a l' key 25 is secured tothe body 10 in the position shown, bya transverse rivet 26.

" At the outer endb'f the stem'v 17 islmounted aplate 27, vwhich vis'the operative member of the front stop. .This plate is secured in position by afmachine screw,28 threaded into Y tweenfthe. washer 29 andthe endofthestem 17. Referring-,tdFig 3, .iti will lbe .seen that the plate .27 f is slotted" as .at '30, ,and i-s YValso Vpro,videld withf 1a larger slot i 31,: rhaving the twoextremelower,projectionsf32.

"The plate27fj11st desc-ribed will permit the uselof automatic sheet Afeeding mechanism such ;as,..shown "in ,my prior- Patent 1,6215 88, granted March 22, 1927. The'slotY Y @30, may-recei-ve .the slow down ltingers,.and theistationary guide tongues projecting'from thefeylindenlendof. thefeedboard-may.enter the ,S1011 131.

v vAllof the structure describedE ahoy-eis old.l The. present Linvention consists y in the l .part

now Y:to bei described, the Acombination Y Y thereof withathe fronteras@ `1guide.

.,Slidablymountedg on the stemy 17 :between fthe front end ot` the'body" 10 .andithegplate V27 :isafsleev'e 33,'havi'n'g a `laterally extend- Vingtongue'34;whichisbent back aroundto -ward the'stem.substantiallyas shown in the `dI.a'\vin,:`gf.- This sleeveimay Abe movedftoward y press having an .automatic `'sheet Vfeeding- `mechanism, including in combination a stem, f

a stop member carried thereby, land aguide element .on .said :stem.cooperatingwi-thsaid Y Y or .awayffrom vthe plate27, Iandl `may .also lbe swung about y the stem 17 to the .operative :p01-

sitionjfshown in; dotted lines Vat .34.

The operationof the device is aslfollows':

,When theffrontstop is. mounted on a the Y:printing press having,.automaticfsheet feeding mechanism, and the automatic sheetffeed- Vingmec'zhanism is in operation; the top guide 351i, is Vswung (its 1 inoperative .positionA as at 34"., lwhere ita is Wellvout ofthfefwayfand,the front '.stop cooperates with-the automatic sheet feeding niechajnismfin .the manner here toforewknown.

When, .however, .theautoinatic `sheet `feedlnwch-anismis removed ,from the, pressllproper,

the AVtop guide 34` 4-is swung 7a-round' the Vstem .17 `to V.its ,lower ,and i operative'position nas shown ,Vin Qf-ull ,lines Vin the drawing, The

:sleeve 33Lis also .moved forward lto bring vthe tcp fguide/l forward through the slot i131)x i-n plate27 The @front 'edge`35 oft-he f top gnide 1there-fore projects forwarfd in ad I Vxa-n ce-oifithe platez27 yand prevents thesheet from buckling onotherwise rising outjofits `proper'position to .be 'received Vby fthe cylinder gt-grijppers,v` The ttmgil :34,1 therefore,

Vforward through the slot 31. feeding by hand the tongues 34C assist the takes the place of the guide structure of thel Y automatic sheet feeding mechanism such-as.

theslow down iinger, which mayv project Hence when hile a'single vembodiment 'of the invention vhas vbeen illustrated and described in det-ail, itl is not vintended that the invention should`-befliniited tothe exact yconstruction shown, but includes all modifications and alterations thereof Vwhichcome within the p v p fsCQpeof the subjoined claims. the stem 17 and clamping the plate 27be- Havingfthus ydescribed the invention, what so n `isfclaimed as newandi'desired: to be secured V guider slidably and .rotatably `vmounted. Von

with. attirent stopha-vj said steunend adaptedgtobe .moved from its .inopenativeypositionabovegsaid .stem to Vits operative position'below said stemzto register with said slot vandifurther adapted "to be advanced ,.thiiou h' said slot.

1.3. A :top faguldeior 4 a :front :stop y lof a Vprinting:press, comprisingin combination, a

sleeve, .a Yflat tongue extending laterally Atheaxisofisaid sleeveQ 4. Afront stop..for :a cylinder printing membervto position the f front :edge offthe sheet- :When hand. feeding,v saidy element being i mounted i on said stem 1' for movement .to

an inoperative positionito permit the use of 1' .automatic AAsheet ,feeding mechanism, 5. A front stop gforfazcylinder vprinting press having an automatic sheet- {feefdin-g mechanism,including inl combinatien a stem,

' astop member carried'thereby, and aguide Y ,element onsaidy stem cooperating with 'said Y member to jpositjiomtheffront edge 'of the sheet when hand' feeding,said element being mounted on said stem .for sliding and 'rotative movement to anincperati've position ing mechanism.- l Y 6. A front stop. for a :cylinder printing press, .comprising in combination, a body,y a l steincarrled lbysaid body, a y platesefz'ured Aat theiouter end fof. said ste1n.-a guidev ieletopermit the 1use ofaut'omatic sheet ieed-` from the forward edge offthelsleeveat one .side, said tongue being lcurved bachi toward sheets, said guide element being mounted to be retracted to an inoperative position.

7 A front stop for a cylinder printing pressV including in combination a stem, a 5 plate mounted thereon having a. notch in its lower extremity, and a U-shaped guide on said stem havingk a limb extending through position.

In testimon Signature.

c -c 1o y whereof I hereuntov affix my WII-JLIAM M.` KELLY.' 

